Fix enc() to use percent-encoding instead of form-encoding for path segments

URLEncoder.encode produces + for spaces (application/x-www-form-urlencoded).
Path segments require %20 per RFC 3986. Replace + with %20 after encoding.

Author: noel-enquanta

src/main/java/voiceit/java/VoiceIt3.java

@@ -73,7 +73,9 @@ public VoiceIt3(String apiKey, String apiToken, String customBaseURL, SSLContext
 	// or '?' cannot change the endpoint or inject query parameters.
 	private static String enc(String s) {
 		try {
-			return URLEncoder.encode(s, "UTF-8");
+			// URLEncoder produces application/x-www-form-urlencoded (spaces → +).
+			// Path segments need percent-encoding (spaces → %20), so fix up after.
+			return URLEncoder.encode(s, "UTF-8").replace("+", "%20");
 		} catch (java.io.UnsupportedEncodingException e) {
 			throw new RuntimeException("UTF-8 not supported", e);
 		}